2025 CPT code 90899
(Active) Effective Date: N/A Psychiatric Services or Procedures - Psychiatry Medicine Feed
Unlisted psychiatric service or procedure.
Modifiers may be applicable.
Medical necessity must be established for the unlisted service or procedure.
The provider performs a psychiatric service or procedure that is not represented by any of the standard and active CPT® codes available.
In simple words: This code is used when a specific code doesn't exist for the psychiatric service or procedure you received.
This code is used to report psychiatric services or procedures that do not have a specific code.
Example 1: A patient undergoes a novel experimental psychiatric treatment not yet recognized by standard CPT codes., A psychiatrist uses a unique combination of therapies not adequately described by existing codes., A patient receives a specialized form of psychiatric diagnostic testing not covered by other codes.
Detailed documentation of the service or procedure provided, including a clear explanation of why existing codes are not applicable. Supporting documentation, such as operative notes or other relevant clinical records. Comparison of the unlisted service/procedure to similar listed codes with a justification for the billed amount.
- Specialties:Psychiatry, Psychology